Christopher Vanderhook
Chief Operating Officer, Director, 10% owner at Viant Technology Inc. (DSP)
Christopher Vanderhook has filed 24 insider reports with the SEC since March 2022, as chief Operating Officer, director and 10% owner at Viant Technology Inc. (DSP). In the last 12 months Christopher Vanderhook sold $1.32M of stock on the open market. The latest filing, on September 14, 2026, reports sale back to the company at Viant Technology Inc. (DSP).
- Filings
- 24
- Companies
- 1
- Bought on market
- None
- Sold on market
- $1.52M
Companies where Christopher Vanderhook is an insider
| Company | Role | Shares held | Bought | Sold | Avg buy | Price now | Last filing |
|---|---|---|---|---|---|---|---|
| Chief Operating Officer, Director, 10% owner | 285,244 | $1.52M | $11.92 | Sep 14, 2026 |
Shares held: common shares owned directly after the latest filing that states it. Avg buy: open-market purchase dollars divided by shares bought, every filing on record.
Every filing
- Sep 10, 2026DSPChief Operating Officer Vanderhook Christopher returned $110,023 worth of shares to the company (8,636 units at $12.74), decreasing direct ownership by 3% to 285,244 unitsForm 4Sale back to the company
- Jul 23, 2026-$138KDSPChief Operating Officer Vanderhook Christopher returned 12,500 units of Class B Common Stock to the company, sold $137,644 worth of shares (12,500 units at $11.01) as part of a pre-agreed trading plan and converted options into 12,500 sharesForm 4Grant or awardSale back to the companyExercise or conversion of a derivativeOpen-market sale10b5-1 plan
- Jun 18, 2026-$139KDSPChief Operating Officer Vanderhook Christopher converted options into 12,500 shares, returned 12,500 units of Class B Common Stock to the company and sold $138,710 worth of shares (12,500 units at $11.10) as part of a pre-agreed trading planForm 4Sale back to the companyExercise or conversion of a derivativeOpen-market sale10b5-1 plan
- Jun 15, 2026-$101KDSPChief Operating Officer Vanderhook Christopher sold $101,288 worth of shares (9,125 units at $11.10), decreasing direct ownership by 3% to 293,880 unitsForm 4Open-market sale
- Jun 9, 2026DSPChief Operating Officer Vanderhook Christopher gifted 208,384 units of Class B Common Stock and was granted 208,384 units of Class B Common StockForm 4Grant or awardGift
- May 21, 2026-$134KDSPChief Operating Officer Vanderhook Christopher converted options into 12,500 shares, returned 12,500 units of Class B Common Stock to the company and sold $134,385 worth of shares (12,500 units at $10.75) as part of a pre-agreed trading planForm 4Sale back to the companyExercise or conversion of a derivativeOpen-market sale10b5-1 plan
- Apr 22, 2026-$137KDSPSEC Form 4 filed by Vanderhook ChristopherForm 4Sale back to the companyExercise or conversion of a derivativeOpen-market sale10b5-1 plan
- Mar 19, 2026-$152KDSPSEC Form 4 filed by Vanderhook ChristopherForm 4Sale back to the companyExercise or conversion of a derivativeOpen-market sale10b5-1 plan
- Mar 10, 2026DSPChief Operating Officer Vanderhook Christopher returned $463,858 worth of shares to the company (44,177 units at $10.50), decreasing direct ownership by 13% to 303,005 unitsForm 4Sale back to the company
- Feb 19, 2026-$111KDSPChief Operating Officer Vanderhook Christopher converted options into 12,500 shares, returned 12,500 units of Class B Common Stock to the company and sold $111,237 worth of shares (12,080 units at $9.21)Form 4Sale back to the companyExercise or conversion of a derivativeOpen-market sale10b5-1 plan
- Jan 22, 2026-$153KDSPChief Operating Officer Vanderhook Christopher converted options into 12,500 shares, returned 12,500 units of Class B Common Stock to the company and sold $153,130 worth of shares (12,500 units at $12.25)Form 4Sale back to the companyExercise or conversion of a derivativeOpen-market sale10b5-1 plan
- Dec 19, 2025-$29.5KDSPChief Operating Officer Vanderhook Christopher sold $29,475 worth of shares (2,500 units at $11.79)Form 4Open-market sale10b5-1 plan
- Dec 18, 2025-$225KDSPChief Operating Officer Vanderhook Christopher converted options into 12,500 shares, returned 12,500 units of Class B Common Stock to the company and sold $224,853 worth of shares (19,102 units at $11.77), decreasing direct ownership by 3% to 347,182 unitsForm 4Sale back to the companyExercise or conversion of a derivativeOpen-market sale10b5-1 plan
- Sep 17, 2025-$85.4KDSPChief Operating Officer Vanderhook Christopher sold $85,426 worth of shares (8,782 units at $9.73), converted options into 313,926 shares, returned 313,926 units of Class B Common Stock to the company and returned $3,000,002 worth of shares to the company (313,926 units at $9.56), decreasing direct ownership by 2% to 356,284 unitsForm 4Sale back to the companyExercise or conversion of a derivativeOpen-market sale
- Jun 13, 2025-$117KDSPChief Operating Officer Vanderhook Christopher sold $117,177 worth of shares (8,960 units at $13.08), decreasing direct ownership by 2% to 365,076 unitsForm 4Open-market sale
- Mar 10, 2025DSPChief Operating Officer Vanderhook Christopher returned $1,228,157 worth of shares to the company (92,204 units at $13.32), decreasing direct ownership by 20% to 374,036 unitsForm 4Sale back to the company
- Dec 19, 2024DSPChief Operating Officer Vanderhook Christopher gifted 31,556 shares, exercised 203,527 shares at a strike of $4.44, covered exercise/tax liability with 47,115 shares and returned $2,999,982 worth of shares to the company (156,412 units at $19.18), decreasing direct ownership by 6% to 466,240 unitsForm 4Sale back to the companyShares withheld for taxes or exercise priceGiftExercise or conversion of a derivative
- Dec 10, 2024DSPChief Operating Officer Vanderhook Christopher returned $184,551 worth of shares to the company (8,636 units at $21.37), decreasing direct ownership by 2% to 497,796 unitsForm 4Sale back to the company
- Sep 10, 2024DSPChief Operating Officer Vanderhook Christopher returned $86,965 worth of shares to the company (8,636 units at $10.07), decreasing direct ownership by 2% to 506,432 unitsForm 4Sale back to the company
- Jun 10, 2024DSPChief Operating Officer Vanderhook Christopher returned $78,723 worth of shares to the company (8,529 units at $9.23), decreasing direct ownership by 2% to 515,068 unitsForm 4Sale back to the company
- Mar 15, 2024DSPVanderhook Christopher was granted 194,384 shares, increasing direct ownership by 59% to 523,597 unitsForm 4Grant or award
- Mar 10, 2024DSPVanderhook Christopher returned $836,069 worth of shares to the company (82,534 units at $10.13), decreasing direct ownership by 20% to 329,213 unitsForm 4Sale back to the company
- Mar 10, 2023DSPSEC Form 4: Vanderhook Christopher was granted 180,180 shares and returned $144,963 worth of shares to the company (35,100 units at $4.13), increasing direct ownership by 54% to 411,747 unitsForm 4Grant or awardSale back to the company
- Mar 15, 2022DSPSEC Form 4: Vanderhook Christopher was granted 266,667 sharesForm 4Grant or award
Compare Christopher Vanderhook with
- Christopher Vanderhook vs Larry Madden1 shared
- Christopher Vanderhook vs Timothy Vanderhook1 shared
- Christopher Vanderhook vs Craig Justin Abrahams1 shared
- Christopher Vanderhook vs Vivian Yang1 shared
- Christopher Vanderhook vs Brett Wilson1 shared
- Christopher Vanderhook vs Max O Valdes1 shared
Other insiders at the same companies
- Larry MaddenDSP
- Timothy VanderhookDSP
- Craig Justin AbrahamsDSP
- Capital V LLCDSP
- Brett WilsonDSP
- Vivian YangDSP
- Max O ValdesDSP
Questions about Christopher Vanderhook
- What is Christopher Vanderhook's role at Viant Technology Inc.?
- Christopher Vanderhook reports to the SEC as chief Operating Officer, director and 10% owner at Viant Technology Inc. (DSP), according to the latest filing on September 14, 2026.
- How many shares does Christopher Vanderhook own?
- After the latest filing that states it, Christopher Vanderhook directly owned 285,244 shares of Viant Technology Inc. (DSP). Shares held through trusts, funds or family members are reported separately and are not counted here.
- Has Christopher Vanderhook bought or sold stock recently?
- The most recent open-market sale was on July 23, 2026: sold 12,500 shares of Viant Technology Inc. (DSP) for $138K at an average of $11.01.
- How do I get alerts when Christopher Vanderhook files?
- Follow Christopher Vanderhook on Quantisnow and you get an email, and a phone notification on Plus, within minutes of each new Form 4 or Form 5, and of each Form 144 notice of a planned sale. Christopher Vanderhook filed 1 time in the last 90 days.
From SEC Forms 3, 4, 5 and 144 filed by Christopher Vanderhook (SEC CIK 0001843104). Totals count each trade once, skipping amendments whose original is on file, from Mar 18, 2022 on. View on SEC EDGAR